.nav {
    display: flex;
    height: 1.24rem;
    border-bottom: #f5f5f5 solid .02rem;
    align-items: center;
    justify-content: space-between;
    padding: 0 .3rem;
    box-sizing: border-box;
    .lt{
        display: flex;
        align-items: center;
        img{
            width: .48rem;
            height: .48rem;
            object-fit: contain;
        }
        div{
            margin-left: .3rem;
            font-size:.3rem;
            color:#333333;
        }
    }
    .rt{
        width:.14rem;
        height:.24rem;
    }
}
.bottom-bar{
    position: absolute;
    bottom: 0;
}